Discount Calculator

How to Calculate a Discount

To calculate a discount, first find the discount amount by multiplying the original price by the discount percentage and dividing by 100.

Then subtract the discount amount from the original price.

For example, if an item costs $100 and has a 20% discount:

$100 × 20 ÷ 100 = $20 discount

$100 − $20 = $80 final price

Discount Formula

Discount Amount = Original Price × (Discount Percentage ÷ 100)

Final Price = Original Price − Discount Amount

For example, a $200 item with a 15% discount gives:

$200 × 15 ÷ 100 = $30 saved
$200 − $30 = $170 final price

Examples of Discount Calculations

How to Calculate Common Discounts

• 10% off — divide the original price by 10. A $70 item saves $7 and costs $63.
• 20% off — find 10% and double it. A $100 item saves $20 and costs $80.
• 25% off — divide the price by 4. A $80 item saves $20 and costs $60.
• 50% off — divide the price by 2. A $120 item saves $60 and costs $60.

Discount vs. Percentage Decrease

A discount and a percentage decrease use the same basic calculation, but they are usually used in different situations.

A discount normally refers to a reduction in price. For example, 20% off a $100 item gives a final price of $80.

A percentage decrease can describe any value that becomes smaller, such as sales, measurements, costs or quantities.

For general reductions that are not specifically about prices, use our Percentage Decrease Calculator.

• shopping during sales;
• comparing discounts between stores;
• checking coupon savings;

• working out sale prices;
• planning a shopping budget;
• calculating percentage-off promotions.